Tire for automobiles and other vehicles



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H. LUBECK,

. TIRE Fon AUTOMOBILES AND OTHER VEHI cLEs.

FILED JAN. 20. 1 919.

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TRE A'UTOMUIBILES AND OTHER VEHICLES.

Application tiled January 20, 1919. `Serial No.` 272,175.

'ject to provide an article ot this class which will be light,y reliable and punotureproot, and which will maintain its wearing qualities throughout.

lily new tire has been designed especially 'as a substitute for solid rubber tires, one ot its `advanta,egcs over such tires being its greater resiliency. This resiliency will not equal that oi: pneumatic tires, but in a goed nianycases where lowcost and reliability are inore importent than comfort, it inay also be used to advantage as a substitute tor pneu matic tires.

ln the aeeoinijiailaying); drawings, l'oriiiingipart oit' this specilication, l. have shown several examples of tires constructed in accordance with my invention. In all the 'forms shown, the tire consists substantially oit a hollow tire body or tire tube 'formed preiern ably ot metal: it desired. a coveringv preter- :ibly .made ot' rubber may be uned with this metal tire. lin these drawings,

hin'. l a cross seetionthrough one forni oftire. in which the body member is a closed tube;

Fig. 2 is a similar view of a tire in which the body `ineinber open along its inner rircuiu tereutial lioitioii;

liv ijs. 3 and fi,- slion' two ti'iiins ol" tiro iii which the body ineinber is a close-d tube to ,fied ot several layers ot sheet inetal;

l? fi is a section through band ot metal wound into several biyerii. but be tore it :is le` AFormed into a tubular body, and illustrates a step iu Ithe maniihicture oit a tire such as shown in li1 ings. El and il; by winding; aithin bandol i'netal into several layers; and

Figi'. G shows still another litoi'in of body member.

The tire shown in Fin'. comprises a tubular tire body preferably inade ot elastic material such as steel or other suitable metal. rllhis tire body can be constructed. strong enough to carry the weight 1ot the vehicle,

al l) without permanent deformation, or it can be inade ot thinner material and in this case `iilled with compressed air or other medium under pressure,to prevent permanent de- `formation. This tubular body consists o an outer portion it otsubstantially circular curvature in cross section, joined by an inner portion if curved so as to lit the iilin B ot the wheel. Thewheel riin is adapted to engage projections or ears A. formed at the junction of the two tube portions A, it', and thus will hold the tire securely i iii place. The body or tube A., A is preferably closed by welding, as indicated at Al, so to be airtight, and inay be provided with a suitable air valve C tor the purpose oit fillingthe `tube with compressed air or other ineifiiuni, as stated above. llhe tube A, ifi. is preferably forined by shaping an elongated piece or band of iiat sheet metal tiret into a ring: ofapproxiiuately the diameter oi. the tire, and then into tubular torni', so that the longitudinal edges of said band will abut against each other; these edgesare thereupon preferablysecured togethen as by welding, or otherwise. The

outer tube portion A inay be provided at its outer periphery with inserts A3 'forming outward projections adapted. to engage the izjrouiid and thus prevent skidding. It desired.y the welding` oi the tube A, LA may be done along; one or both ot the projectiiipy edges it.

To the outer surtace ot the tube portion A is secured. as for instance byvulcanizing, a protecting cover D, 'prefer-ably made of rubber, which will torni the tread nieinber of the tire. `lt is ot course not absolutely neceseary that the rover ll be secured to the body it. as by vuleanieinif or otherwise, al? though t i inay be pref d in practice. ll-he cute surii ce of the cover D preferv termed with recesses or depressions D toi. the purpose ot preveiiitiiin` shielding.

The torni oit my inventicm shown in Fig. il litters lfroiii that justdescribed in that the tire body is open along; 'its inner periphery and `consists only ot the outer member At haring its free edges A5 engaged by the wheel riin. To prevent the edges A5 from beingl pressed toward each other, l may insert a reinforcing ring E between them. This ring', which in ay be termed an auxiliary riin, closes' the open innerside of the tire body il?, and it the joint between the ring E and the edges A5 is made airtight, an inflatable air-chamber of substantially the same character as in Fig. l is obtained.

Instead of lorming my tire of relatively thick sheet metal, as in Fig. l, I may use several layers of thin sheet metal, the tire in this case being formed in thesalne manner-as in Fig. l. Thus, in Fig. 3, I have shown a tire body suitably made of several separate laye-rs of thin sheet metal F, Welded into a tube at F To reinforce this tube, I may insert before'welding a ring E engaging the inner portion facing toward the rim, and tothe outside ot this tube portion I may secure an auxiliary rim G, consisting preferably of two parts Welded together` by the saine operationwhich Welds the tube F. As shown, the auxiliary rim G would then be engaged and clamped in place by the Wheel riniB. The cover or tread member 'D may be similar to the one shown in Figs. land 2. and would be secured to the outermost layer oi*y the tubeF.

Fig. t illustrates a modilication ot the construction shown in Fig. 3. The tire tube F.v in this case is also formed oi several lseparate layers of thin sheetmetal, but it is almost circular in cross section. its tivo edges being Welded together at F The auxiliary rim (,l in this case also may consist oi two portions welded together with the tube `ioint F 3.

' The :form ot myinvention showvn in Figs. 3 and et.. may be used preferablyv Where greater rresiliency is desired. It is to be understood that in this case also vthe Jtube may be provided With a suitable valve tor the same purpose asV described in connection. with Fig. l. The filling of the tube with compressed air or the like will increase the resiliency land prevent permanent deformation of the tire. inthe toi-ms of my invention described so far. where the tire tube is formed of one or several separate layers or? sheetmetal, the short7 transverse edges of the strip of material (after the latter has been given the shape ot a tire) are either brought into abutment. or caused to overlap.' In either ease the joints are closed. as by Welding or otherwise.

instead of forming the tire body from separate layers of sheetmetal..l shown i' Figs. 3 and il.. the tire bochmay be i' by Winding thin band of metal in several layers. so as to torni a complete ring F4. as shown in Figf. which ring is then formed into a tubular body, with its longitiulinal. edges welded together as in Figs. 1, El, and t. The transverse overlapping joints are also preferably welded. as shown at F?. and the tire may be secured to an auxiliary rim. asin Figs. 3 and 4.

Still another form of my invention is 'shown vin F ig. 6.' the'tire body in 'this case Ebeing'lmade of three pieces A7, Welded to gether at the three points a reini'orcingring E being preferably inserted bel'ore welding.

inasmuch as one of the cliieit purposes of my invention is to provide tires which will cost considerabl \Y less than either the. solid or the pneumatic rubber tires non' coin` monl)7 in use, the rubber covering ot in v new tire may be made relatively thin. thun requiring much less material than solid or pneumatic rubber tires. In. tact. the cover may be made quite thin at the bottom ot' the recesses D. this being` an additional advantage, since the tire will then present duiI4 ing its ivhole lite. that is. until the covering is practican)Y worn down. a surface which will eiicctively prevent siridding. After the covering` has been ivorn dovvn. tinl saine tire body may be provided with n new covering. and this may be repeated several times Without requiring a nen' tire body. lit is evident that a thin covering` will have a relatively short liI'e. but owing to thc rcduced quantity ol rubber material used. the cost of the tire will also be corresl'iondinglv reduced. but since such tires with thin covering Will have the properties and the appearance of new tires until the coveringl is almost entirely worn down. it univ also be advantageous 'from this point olt vien' to use tires with a thin covering ol relatively low cost.

lt is of course possible 'to usc in v tirosr without any covering :it all. for instance in winter. or `with only a vcrv thin cover :n: n protection against rust. in this rase the tube would prelerabijvv have to be provided with metal knobs or projections, such as shown in Fig. l. to prevent slcidding. While I have shown such metal projections only in Fig. l, it is clear that they` may be used with any one of the lornn:` of my invention illustratedV in the drawings.

It is to be understood that the l'ornis shown in the drawings represent :x 'ien' cx amples only of many different 'forms which may be used` and that various modifications may be made without dcirinrting' `from the nature ol' rnv invention as ret .forth in tlu amiended claim.

u i as my inw-n in i ibination. vitli n rebuilt; i y having liar o on each side. a 'velnrle vrinfnl tire made olY ilat clonniteil when!V nichel shaped .into a. .substantially tubular bod); having lnfojections lof-:ded bclu'ccn said run .il-anges. and an auxiiim)v rinl on said inbula-r body extending troni ozu olI sai-'i proA iections to the other.

In testimony whereof I allix my signal urf;l in presence of two witnesses.

HILDING minnen.

Witnesses:

ALBERT E. PARKER. e LORIA.

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